bin laden and decimated a good part of the central command of al qaeda, we must continue to realize and we tend to forgot that these franchise cells throughout the middle east have proliferated and it's extraordinary important for us to understand why that threat is diffused for that very reason. >> let's talk about one of those cells. we keep hearing about al qaeda in the arab peninsula. they have an incredibly skilled bombmaker. what else can you tell us about them and how they might be involved? >> it's unclear at this point. there were tli drone strikes in yemen five days last week and a lot of activity going on there. they tried to carry out the 2009 bombing of an airliner flying in detroit that was an underwear bomb. there is increasing sophisticating from that in yemen. problems in yemen troops have been sort of not fighting. they have been rebelling against the government. i think yemen is a real challenge for the obama administration. they have tried to use drone strikes there. they have tried training and it has not worked well. i think they might need to reassess what the